Closure for containing vessels.



W. F. STONE. cLosURE Foa corvmm'wfs vEssELs. APPLICATION FILED- JN- 20,l9l5 1,1 l S, A Patented July 25, l1916.

WILILrAr/r n. STONE, or PORTLAND, MAINE, Assisnon To NATTONAL METAL SEAL.CORPORATION A conronATion or MAINE.

CLOSURE FOR CONTAINING VESSELS.

. Specification of Letters Patent.

Patented July 25, i916.

Application filed January 20, 1915. 4,Serial No. 3,200.

,tainingvvessels and particularly to a one piece closure for a vesselhaving a flanged neck or nozzle.

The closure of my present especially applicable to that class ofcontaining vessels which are to be used from time to time after theirinitial opening. One objection'to the closures now in use on this classof receptacles is that the` cap is apt to drop down over the nozzlemouth when pouring and thus interfere withthat operation or that whenswung up it drops-l back too far and sometimesI 'becomes disengaged fromthe flanged vessel neck. To the end therefore of providinga closure ofthis general type which can not drop down over the vessel mouth whenpouring and cannot accidentally disengage from the iianged vessel necklin its opening movement, I have.

devised my present invention. I will discuss the form shown asillustrative of the principles ofmy invention, first generally to setforth the principles involved.`

In the form shown, the depending skirt of the cap has a hinge lug whichis initially crimpedunder a shoulder about the nozzle mouth.f rIhisshoulder is preferably formed as a continuously recessed rim byupsetting the metal of thevessel mouth. In the opening movementl ofthecap, the hinge lug turns ontlie shoulder as a pintle and begins tobindOver-its inner edge to hold the cap out ofthe Way in pouring and to lockit against.accidentalv dislodginent from the --about the circumferencethereof and may vessel. The hinge lug may be crimped underthe shoulderof the nozzle at any point be combined with a plurality of locking lugsformed on the circumferential skirt of the cap and adapted yforengagement vvithfsaid continuously recessed rim to lock the cap in a 1swing. thereof ai p wardly i Aand array;

invention is the delivery opening. lVhere the'container' 1s to beusedfrom time to timeafter its initialopening, an uncrimped locking lugis Yprovided which lfrictionally engages the lange of its nozzle andacts as a temporary The construction and operation of my invention willbe more fully disclosed in the specification which follows.

Inlthe drawings forming a part of that specification I have shown as anillustrative embodiment. a form of closure which has proven satisfactoryin practice and well adapted to the requirements of manufacture. lThroughout specification and drawings like reference numerals arecorrespondingly fvapplied, and in these drawings: Figure l 1s a rea-rview of a closure in accordance with my invention, applied to a iiangedcontainer nozzle in sealing position. Fig. 2 is a. front elevationthereof. Figs. 3 and 4 and 5 are .l enlarged partial sectionsillustrating the locking action indicated hereinbefore. Fig. 6 is apartial underneath section of the noz-, zle showing the cap closed, andFig. 7 is an underneath View showing the cap fully opened.

I have indicated at 1 a vessel mouth or nozzle which isvpreferably madeof sheet metal or other suitable material. The nozzle has a continuouslyrecessed' rim about its month formed by upsetting the edge of the mouth.This leaves a horizontallydisposed annular fla-nge 2 which affords aflat seat for' the seal or pack 21. Theflange 2 is, bent` downwardly atsubstantially right angles to provide a continuons circumferential skirt3 disposed in a vertical planesubstantially parallel to the nozzle 1.The

skirt 43 is bent inwardly at 81 and extends as the larc of a circle fora slight distance, and is then deflected tangentially inwardly andupwardly and extends as an upwardly directed, continuous portion 3?terminating in an edge. 4, surrounding the mouth. .The portion .32provides a continuous pintle over which the hingingy lug ofthe closuremay bel crimped at 'any point about its-circumference. This portion 4isspacedv from the nozzle so as to leave a continuons recess l towardwhich the inner edge of the hinge lug ofthe closure moves kwhen vtheAclosure ris, swung to fully Openposi'tlon Thefclosure'comprlses a capS'overlylng vthere Instants/eins' `G 0f" the Vnozzle -and i rie 4carrying' the pack il? which seats tightly a gainst the liat rim i2 oithe nozzle when the y;.ontainer sealed. The cap 5 has a continuouspendent skirt or iiange l inclosing the pack 21 and partially overlyingthe vertical overhang` 3 oi the nozzle. (ln one side of the cap anddepending from the lower edge oi' the iangre l is a hinge hunr Sl. Thelug 9 is adapted to he lient. up undeg'the curved portieri fl ot thenozzle l and to he clenched under said portion at any point ahont itscircumference so as to form a permanent hinge. The lug turns on theportion 31 as a' pintle in the opening` and closing' movement o'l theinap.

T he hinge lug consists of a relatively liroad hase portion formed as anextension ot' the pendent flange l curved concentric with the outer edgeof the nozzle and fitting thereon when the cap in closed position. Thelunr has an abrupt shoulder 91 at each end of its hase and tapersinwardly and terminates'in a resilient pointed tip disposed under saidrounded portion and .adapted to ride over said rounded portion in theopening;` movement ot2 the -ap and onto the tangential portion, and hedrawn down against the edge -t thereof by the areh of the hase portion.ln the openingr movement of the cap the lug moves upwardly around theportion 31 and over the edge 4 thereof an tends to ride into the recess41 between sairl portion 31 and the overhang 3 of the rim. As the capapproaches its fully opened `position. the lug' rides over the edge land in the further opening' movement of the cap the lug;- is sprung.Tand its tip end drawn down over the edge Je with a tight bind by thearch ot its hase portion.

The action of the hinge lug in the openingniovemont of the cap isillustrated in detail in Figa. 2:3, #i and wherein the sueccssivepositions ot' the lug during the suet-essire phases of opening movementhave heen shown on a slightly exaggerated scale. llrlerrinpi first toFig. 3, wherein the position which tll'e lung occupies when the cap isseated has heen indicated.` the free end of the lunA is represented asconforming closely to the curvature El* of the flange 3. As the capopens. the tip end ot the luf: tends to follow the normal truly eircularpath inrlirated in dotted lines, Fig. y provided for it hy the trulycircular curvature 2, but is detlected as it rides upwardly alone; saidportion into the full line position by the tangential portion of theiange. This produces a stress on 'the tip end of the lug which.having.;` a lgreater.degree of resiliency than itsl hase portion. yieldsinwardly and downwardly.` and is sprung:` over the portion This tendencyon the part o1 the luelr to spi-iurer oui is further augmented hy thehindingl action of the cap over the edge of the flange 3 (indicated at3;- in Fie. 4). In

the uitheropening, the eap is drawn down tightly over the edge i oi theportion ill. This 'final position of the lug is indicated in Fig.wherein the tip end of the lug.; is represented as having ridden overthe edge l and outwardly toward the overhang, and as heilig tightlyengaged over said edge. 'lhe opening movement ot' the cap is linallystopped hy the shoulders il* ot' the lug hinding against the curvedportion 31 ot' the (lange At this phase. therefore. both the tip and thehase or the lug are engaged with the shoulder so that the cap is tightlyheld in fully opened position. This action is 'further illustrated inFigs. G and 7, wherein the externally eonvexed and internallyeonoavedcontainer rim and the two positions of the lug' relative to saidrim corresponding to the closed and open positions of the cap. areindicated. In the closed posh tion of the cap. the eoncaved lngreonlol'nis to the extern-.il eonvexity of the container rim, as shown inFig. o. As the cap opens,

the lug moves inwardly so that when thecap is 'fully opened the lug.T isno longer in a position of conformity to the oonvexity ot' the containerrim hut has assumed a position of opposed eoncavity to the eoueavity ofthe edge 31 of said rim, as shown in Fior.

7, thus securing the resilient eli'eets ot' the arched portions underpressure.

The initial sealing of the Container is et'- i'ected hy one or morelocking lugs l() struelr. from the metal of the flange 2 on the side ofthe cap opposite the hinge lug 9. The lugs 1Q are adapted to he clenchedunder the shoulder fl when the container is initially sealed.v lnopening the container for the first time a suitah'le opening implementis inserted under the lugs 10 to spread or pry them outwardly 'from thenozzle. The cap may then he swung hack to uncover the delivery opening.

lVhere the container is to he used from time to time it is desirablethat Ine-ans he provided for temporarily locking the eap in sealingposit-ion. This is eii'eeted in the present invention hy an nncrimpedlocking lug.;l l1 which formed as a relatively shortdownward extensionoi the skirt 7 and is preferably disposed between the pair of loeling;1lugs 1l). "hen the. cap is initially scaled, this lug engages theilanfze 3 to assist the locking lugs in sealing the container. After thecontainer has heen initially opened. this lug is usually sullicient totemporarily look the cap in closed position.

After the container has been initially sealed hy crimping the lookingrlugs under the shoulder l the lugs are given the form liest illustratedin Fig. After crimping. each hu.r has an outwardly arched portion 11.).extending.; in the direction oi circumference oi the flange tl. 'Whenthe eapis snapped down'into closed position, the lower edge of the archengages the liange 3 at the point 31 where said iiange is turnedupwardly to form the portion 32.. Below the arched lportions l2 the lugsare deflected slightly outwardly to provii'le a somewhat elongatedextension under .which the open-- ing` implement may be inserted inprying open the lugs The device ol the present invention af 'ords atight permanent or semi-permanent seal which can be producedinexpensively and in `which the liability of the cap intertering withthe pouring or falling away from the iiontaineris wholly obviated.

Various modifications in the form and construction of .my device mayobviously be resorted to if Within the limits of the appended claims. i

lVhat li therefore claim and desire to secure by Letters Patent is:

l. In combination with a container having` `a curved shoulder portion,acap having a hinge member disposed for pivotal engagement with saidshoulder` said memberl having an arched basal portion curvedsubstantially concentric with said curved portion Qi the shoulder andterminating in a de- `iorn'iable tip 'portion disposed to ride over saidcurved portion in the ope-ning movement of the cap and to be drawndownwardly over the edge of said curvedportion by the arch oi said basalportion.`

2. In combination with a container having a shoulder including a portionextend;

inici, substantially as the are of a circle and a portion extendingsubstantially tangentially thereto, a closure having a hinge me1nberbent in substantial .conformity to 'said arenal portion of the containershoulder and disposed to normally coliform to said arcual portioin butdeflected into a position of nonconformity by I-said tangential portionin the opening movement of the closure wherein it said curved portion ofthe container shoulder and defiected by said tangential portionof saidshoulder out of its normal positiony of conformity teja position of.nonnonliormity in which it binds over the edgeof the tangentialportion.`

In testimony in presence of 'two Witnesses. l

y vWILLiAM` F. sToNnf lVitnesses: i

HOWARD L, HU'roHlNsoNf, WM. L. WALKER.

whereof l. aliix .my signature

